Author Archive for Fred Coulson

Ancient Treasure

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In my apartment building people often leave books they no longer want in the lobby for others to pick up if they want. Usually it’s nothing interesting, but the other day someone left a truly incredible artifact: the Microsoft Excel Version 1.04 manual, from 1986.

This is a true historical document. It’s not the absolutely first version of Excel, but it’s almost the first. It includes the installation media (800KB floppy!) and it’s absolutely pristine. It feels like this thing belongs in a museum.

But the most interesting part is the very last page: a bug report form, for sending “software bugs, documentation errors, or suggested enhancements”. Best of all: Mail the form to Microsoft!

This thing is a treat. Shall we start the bidding at, say, $0.43?

excel-1

excel-2

Debugging ORA-01001: invalid cursor

Backup failure… One RMAN’s odyssey

What happened to my automatic instance recovery?

v$osstat anomaly

cursor: pin S wait on X

Testing disk I/O with the O_DIRECT flag

Calculating the delta between two row values

Back in the blog

Removing a collar from a feral cat